How Many People Are Named Kailen?
An estimated 1,625 people in the United States have the first name Kailen. It is used for both genders, with 55.9% male. The average bearer is 19 years old, and Kailen peaked in popularity in 2008 with 71 births that year.
Below you will find a full statistical profile of Kailen as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Kailen paired with any surname.
Key Insights
- Kailen is a genuinely unisex name, given to both boys and girls in roughly equal numbers.
Estimated Living Americans
1,625
About 1 in 210,926 people in the U.S.
Rarity
Rare
Predicted Gender
Male
55.9% confidence
Average Age
19
years old
Peak Year
2008
71 births
Total Registered
1,650
since 1880
Gender Distribution for Kailen
Kailen is a genuinely unisex name, used for both males (55.9%) and females (44.1%). Out of 1,650 total births registered, 922 were male and 728 were female.
Kailen as a male name
Ranked #3,182 in 2024
38 male births in 2024
Peak: 2023 (43 births)
Kailen as a female name
Ranked #16,339 in 2024
5 female births in 2024
Peak: 2007 (41 births)
Kailen: Popularity Over Time
SSA records for Kailen span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 577 babies were registered. While Kailen is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Kailen by Decade
How has Kailen tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Kailen by State
Birth registrations for Kailen span all 7 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Washington, South Carolina, Louisiana. On average, about 20 Kailens were registered per state.
Kailen + Last Name Combinations
How many people share a full name with Kailen as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kailen
Other first names starting with K with a similar number of bearers.
Kailen: Questions and Answers
How many people in the U.S. are named Kailen?
We estimate approximately 1,625 people named Kailen are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 210,926 Americans share this first name.
Is Kailen a common name?
Kailen is classified as "Rare" and is more popular than 92.8% of all first names in the SSA database. A total of 1,650 births have been registered with this name since 1880.
When was Kailen most popular?
Kailen reached peak popularity in 2008, when 71 babies were given this name. The average age of a living person named Kailen is approximately 19 years old, reflecting when the name was most commonly given.
Is Kailen a male name?
Kailen is predominantly male. 55.9% of people with this name are male. See the gender breakdown above for full details.
How many Kailen Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kailen Smith, Kailen Johnson, Kailen Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 0 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau estimate. Full methodology.
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